Speakers

Part Number	Description / PDF	Quantity
AS04008CO-2-WR-R PUI Audio, Inc.	SPEAKER 8OHM 1.5W TOP PORT 84DB	1115
AS04008PO-2-LW152-WR-R PUI Audio, Inc.	SPEAKER 8OHM 1W TOP PORT 84DB	68
AS01508MS-SP11-WP-R PUI Audio, Inc.	SPEAKER .7W 8 OHM 89 DB 600 HZ	10
ASX08808-TP-R PUI Audio, Inc.	EXCITER 8 OHM 103DB	17
AS07004PO-WR-R PUI Audio, Inc.	SPEAKER 4OHM 2W TOP PORT 86DB	181
AS03608MR-4-HT-R PUI Audio, Inc.	SPEAKER .8W 8 OHM 85DBA 450HZ MY	94
AS03608MR-4-R PUI Audio, Inc.	SPEAKER 8OHM 800MW TOP PORT 85DB	1892
AS07108PO-WR-R PUI Audio, Inc.	SPEAKER 8OHM 3W TOP PORT 86DB	3388
AS05004PR-2-R PUI Audio, Inc.	SPEAKER 4OHM 1.5W TOP PORT 85DB	38
AS05008PR-R PUI Audio, Inc.	SPEAKER 8OHM 500MW TOP PORT 84DB	0
AS04008PO-2-LW152-R PUI Audio, Inc.	SPEAKER 8OHM 1W TOP PORT 84DB	902
AS02008MR-HT-R PUI Audio, Inc.	SPEAKER .5 W 8 OHM 87 DB 800 HZ	98
AS05208PR-4-R PUI Audio, Inc.	SPEAKER 10W 8 OHM 77DBA 200 HZ	118
ASX11504-SW-R PUI Audio, Inc.	SUBWOOFER EXCITER 50MM 50W 4 OHM	34
AS01808MR-LW152-R PUI Audio, Inc.	SPEAKER 8OHM 1W TOP PORT 80DB	3298
AS01525MR-R PUI Audio, Inc.	SPEAKER .3 W 25 OHM 86 DB 850 HZ	89
AS06608MR-LW152-R PUI Audio, Inc.	SPEAKER 8OHM 500MW TOP PORT 84DB	0
AS03208MS-3-R PUI Audio, Inc.	SPEAKER 8OHM 3W TOP PORT 85DB	886
AS07808AS-R PUI Audio, Inc.	SPEAKER 15 W 8 OHM 82 DBA 120 HZ	70
AS04016CO-R PUI Audio, Inc.	SPEAKER 3W MAX 16 OHM 90DBA 550H	84

Speakers

1. Overview

Speakers are electroacoustic transducers that convert electrical audio signals into sound waves. As critical components in audio systems, they reproduce audible frequencies (typically 20Hz-20kHz) with controlled directivity and fidelity. Modern speaker technology integrates materials science, electromagnetism, and digital signal processing to deliver immersive audio experiences across consumer, professional, and industrial applications.

2. Main Types and Functional Classification

Type	Functional Characteristics	Application Examples
Dynamic Speakers	Electromagnetic driver with cone diaphragm, wide frequency response	Home theaters, PA systems
Electrostatic Speakers	Thin membrane with electrostatic field, excellent transient response	High-end audiophile systems
Planar Magnetic	Flat diaphragm with printed circuits, precise sound imaging	Studio monitoring, headphones
Coaxial Speakers	Multiple drivers on single axis, improved phase coherence	Car audio systems
Subwoofers	Specialized for low-frequency reproduction (20-200Hz)	Cinema sound systems

3. Structure and Components

Typical speaker systems consist of:

Transducer Elements: Voice coil, magnet assembly, diaphragm
Cabinet: Made from MDF, aluminum, or composite materials
Crossover Network: Passive/active filters directing frequencies to drivers
Connectors: Binding posts, TRS/XLR inputs, or wireless modules
Damping Materials: Acoustic foam for resonance control

4. Key Technical Specifications

Parameter	Description	Significance
Frequency Response	20Hz-20kHz 3dB	Defines audible range accuracy
Sensitivity	85-100 dB/W/m	Efficiency in sound production
Impedance	4 , 6 , 8 nominal	Matching with amplifiers
Power Handling	20-1000W RMS	Maximum safe operating level
THD	<0.5% at 1W	Audio signal purity

5. Application Areas

Consumer Electronics: Smart speakers (Amazon Echo), soundbars
Professional Audio: Studio monitors (Yamaha HS8), live sound systems
Automotive: Door speakers, active noise cancellation systems
Commercial: Distributed audio in retail spaces, emergency PA systems
Immersive Systems: Dolby Atmos home cinema setups

6. Leading Manufacturers and Products

Manufacturer	Representative Product	Key Innovation
Bose	901 Direct/Reflecting Series	Omni-directional sound field
KEF	LS50 Wireless	Uni-Q concentric driver
Bowers & Wilkins	800 Series Diamond	Matrix internal bracing
Yamaha	HS8 Studio Monitor	Neutral sound reproduction
Harman Kardon	Invoke	Cortana integration

7. Selection Recommendations

Key selection criteria:

Match impedance/power handling with amplifier specifications
Room size vs. speaker sensitivity (e.g., 88dB+ for large spaces)
Crossover frequency alignment in multi-way systems
Material durability for environmental conditions (humidity, temperature)
Budget allocation: 30-50% of total audio system cost recommended

8. Industry Trends Analysis

Emerging developments include:

Integration of AI-powered room calibration (Dirac Live, Audyssey)
Multi-directional transducers for 3D audio in VR/AR applications
Development of micro-speakers using graphene diaphragms
Adoption of wireless mesh networks (WiSA technology) for speaker arrays
Growth of automotive audio systems with headrest-integrated transducers